A survey asked a group of adults and youths if they prefer reading books printed on paper or electronic books. 39 youths said they preferred reading electronic books 23 adults said they preferred reading books printed on paper. 66 total people said they preferred reading electronic books 123 total people were surveyed. Fill in the missing values in the table below.

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

Asays "we are both knaves" and b says nothing. exercises 24–31 relate to inhabitants of an island on which there are three kinds of people: knights who always tell the truth, knaves who always lie, and spies (called normals by smullyan [sm78]) who can either lie or tell the truth. you encounter three people, a, b, and c. you know one of these people is a knight, one is a knave, and one is a spy. each of the three people knows the type of person each of other two is. for each of these situations, if possible, determine whether there is a unique solution and determine who the knave, knight, and spy are. when there is no unique solution, list all possible solutions or state that there are no solutions. 24. a says "c is the knave," b says, "a is the knight," and c says "i am the spy."

Thee blue triangle has rotated from quadrant i to quadrant iii about the origin. describe the effects of the rotation on the coordinates of the blue triangle.